> Fetch clean Markdown by appending `.md` to any page URL under https://signalwire.com/docs or requesting it with the HTTP header `Accept: text/markdown`. The root index at https://signalwire.com/docs/llms.txt lists the available documentation indexes. # localMicrophoneGain$ > Observable of the current local microphone gain (0..200, where 100 = unity). ```ts get localMicrophoneGain$(): Observable ``` Observable of the current local microphone gain (0..200, where 100 = unity). ## **Examples** ```ts call.localMicrophoneGain$.subscribe((localMicrophoneGain) => { console.log('localMicrophoneGain:', localMicrophoneGain); }); ``` > Observable of the current local microphone gain (0..200, where 100 = unity).